I am hoping that you guys and help me out.I have visited this forum for years but never joined nor posted anything.Such a great deal of good info out here.
I recently put together a hot rod running a 1990 speed density TPI system using a 7730 ECM. My tune is set to control my electric fans.I have never hooked them up this way before, I always used a separate fan/switch to activate. I have researched the site and found some good info, but couldn’t find confirmation on what I am trying do to for wiring my aftermarket relay.If anyone can confirm my wiring thought process here it would be so greatly appreciated.
I hope the attachment posted..

 

Not sure what up with your diode or wiring of a Bosch relay,!

 

Just added protection for the ECM. What I am unsure about is the AFDE connection types on the factory over the relay I am using. What is the correlation? According to your diagram you posted and others I have seen, I think it is;
A=#87
F=#85
D=#86
E=#30

 

Those numbers corispond to Bosch 5 wire relays. The trigger/coil side is what is control ins the large amp draw.